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United Kingdom
Power requirements
The DVD-D9 range are powered
from the serial port RTS line of the
connected DVD player. The maxi-
mum current draw is 6mA.
Switch Inputs
The DVD-D9 switch interface con-
sists of a series of nine double ter-
minal blocks to which any Normally
Open (NO) momentary switch can
be connected.
Contacts may be wired up to 100
metres away from the DVD-D9
without degrading the performance
of the device.
DVD-D9 interface
The DVD-D9 interface connection
is a standard DB9 male as specified
within the V300 player specifica-
tion.
Serial communication protocol is
9600 Baud, 1 Start bit, 8 Data bits, 1
Stop bits, No parity for all control
commands. All I/O is RS232 and
TTL compatible.
DVD control protocol
The DVD-D9 communicates with
the player using the player control
protocol . This protocol takes the
form of ASCII command strings of
format:
[PC,RC,44]\r
\r – Carriage return
These strings allow the PlayC (Play
Chapter), PlayT (Play Title/Track)
or RC (Remote control) commands
to be issued to the player in response
to an external button on the DVD-
D9 being pressed.
See button function tables at the end
of the document.
NOTE: For further information on
the DVD-D9CH, DVD-D9DA or
DVD-D9RC please see the rele-
vant datasheet.
DVD-D9 interface
Function DB9 Male
RTS 8
RXD 3
TXD 2
Ground 5
All other connection are N/C
Electrical Characteristics (TA= 25oCTypical)
Parameter Minimum Maximum Units Notes
Supply Voltage (RTS) 4.5 9 V
Supply Current - 6 mA
Switch resistance - 100
Switch de-bounce time - 50 mS
RXData high level GND 0.8 V
RXData low level 2.4 VCC V
Terminal wire thickness 0.5 1.3 mm2
Absolute Maximum Ratings
Parameter Minimum Maximum Units
Supply Voltage (RTS) -0.5 +10 V
Environmental
Parameter Minimum Maximum Units
Operating Temperature 0 70 oC
Storage Temperature -10 80 oC
Humidity 0 80
%
Dimensions See below
Weight 150g
Immunity & emissions EMC compliance to 89/336/EEC